Identify (B) in the following reactions:

Explanation

LBAH (Lithium tri`-t-`butoxyaluminium hydride) is a less reducing agent than `LAH`. It reduces aldehydes and ketones to alcohols, and acid halide `(RCOX)` to aldehyde `(RCHO)` at `-78^(@)C`. Similarly, `DBAH` [diisobuty] aluminium hydride or
reduces esters partially to aldehyde `(RCHO)`.